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Patent Searching and Data


Title:
PASSENGER CONVEYOR
Document Type and Number:
Japanese Patent JP2015131691
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a passenger conveyor detecting breakage of a tooth portion of a comb and being capable of securing safety of a passenger even when the tooth portion thereof is damaged.SOLUTION: A passenger conveyor includes: optical sensors 68 being provided for each trough 305 of a cleat surface 302 of a footstep 30 for detection, upwardly irradiating light and outputting optical signals when the light irradiated is shined and reflected on tooth portions 601; a generation section 76 outputting a comb detection signal when being input with the optical signals from all the optical sensors 68 and not outputting the comb detection signal when being not input with the optical signal from at least one optical sensor 68; and a controller 50 outputting a comb damage signal when being not input with the comb detection signal.

Inventors:
FUJIMOTO TAKUYA
Application Number:
JP2014002424A
Publication Date:
July 23, 2015
Filing Date:
January 09, 2014
Export Citation:
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Assignee:
TOSHIBA ELEVATOR CO LTD
International Classes:
B66B29/06
Domestic Patent References:
JPH06271265A1994-09-27
JP2009208955A2009-09-17
JPH07133088A1995-05-23
JP2003512273A2003-04-02
Attorney, Agent or Firm:
Masato Tsuda
Tetsuji Nakamura
Katsuyuki Tomita
Husband
Tamako Tsutada